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authorHerbert Xu <herbert@gondor.apana.org.au>2020-06-10 21:05:13 +1000
committerBorislav Petkov <bp@suse.de>2020-06-15 11:59:19 +0200
commitc8a59a4d8e3c9e609fa915e39c3628c6dd08aeea (patch)
tree72e9bd7a4ae54215415c53f9b115db34d61f1ddd /arch/x86/Kconfig
parentb3a9e3b9622ae10064826dccb4f7a52bd88c7407 (diff)
x86/microcode: Do not select FW_LOADER
The x86 microcode support works just fine without FW_LOADER. In fact, these days most people load microcode early during boot so FW_LOADER never gets into the picture anyway. As almost everyone on x86 needs to enable MICROCODE, this by extension means that FW_LOADER is always built into the kernel even if nothing uses it. The FW_LOADER system is about two thousand lines long and contains user-space facing interfaces that could potentially provide an entry point into the kernel (or beyond). Remove the unnecessary select of FW_LOADER by MICROCODE. People who need the FW_LOADER capability can still enable it. [ bp: Massage a bit. ] Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20200610042911.GA20058@gondor.apana.org.au
Diffstat (limited to 'arch/x86/Kconfig')
-rw-r--r--arch/x86/Kconfig3
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 6a0cc524882d..5c44eacca449 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1292,7 +1292,6 @@ config MICROCODE
bool "CPU microcode loading support"
default y
depends on CPU_SUP_AMD || CPU_SUP_INTEL
- select FW_LOADER
help
If you say Y here, you will be able to update the microcode on
Intel and AMD processors. The Intel support is for the IA32 family,
@@ -1314,7 +1313,6 @@ config MICROCODE_INTEL
bool "Intel microcode loading support"
depends on MICROCODE
default MICROCODE
- select FW_LOADER
help
This options enables microcode patch loading support for Intel
processors.
@@ -1326,7 +1324,6 @@ config MICROCODE_INTEL
config MICROCODE_AMD
bool "AMD microcode loading support"
depends on MICROCODE
- select FW_LOADER
help
If you select this option, microcode patch loading support for AMD
processors will be enabled.